./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label15.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version fca748b1
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label15.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9fbc20983083f465b3eede57a226cc56a0e48515578e64c31c2db7f869f449ac
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m
[2024-11-19 18:11:33,399 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-19 18:11:33,446 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-19 18:11:33,452 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-19 18:11:33,453 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-19 18:11:33,470 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-19 18:11:33,470 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-19 18:11:33,470 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-19 18:11:33,471 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-19 18:11:33,471 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-19 18:11:33,471 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-19 18:11:33,471 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-19 18:11:33,472 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-19 18:11:33,472 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-19 18:11:33,472 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-19 18:11:33,473 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-19 18:11:33,473 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-19 18:11:33,473 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-19 18:11:33,473 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-19 18:11:33,473 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-19 18:11:33,474 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-19 18:11:33,477 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-19 18:11:33,477 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-19 18:11:33,478 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-19 18:11:33,478 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-19 18:11:33,478 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-19 18:11:33,478 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-19 18:11:33,478 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-19 18:11:33,478 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-19 18:11:33,479 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-19 18:11:33,479 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-19 18:11:33,479 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-19 18:11:33,479 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 18:11:33,479 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-19 18:11:33,479 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-19 18:11:33,480 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-19 18:11:33,480 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-19 18:11:33,480 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-19 18:11:33,482 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-19 18:11:33,482 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-19 18:11:33,483 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-19 18:11:33,484 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-19 18:11:33,485 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fbc20983083f465b3eede57a226cc56a0e48515578e64c31c2db7f869f449ac
[2024-11-19 18:11:33,718 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-19 18:11:33,739 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-19 18:11:33,741 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-19 18:11:33,742 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-19 18:11:33,742 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-19 18:11:33,743 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label15.c
[2024-11-19 18:11:34,979 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-19 18:11:35,429 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-19 18:11:35,431 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label15.c
[2024-11-19 18:11:35,464 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef6fe3e27/8c364cb4370e47ada5f25d77200c71ce/FLAG2fe4da8c5
[2024-11-19 18:11:35,600 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef6fe3e27/8c364cb4370e47ada5f25d77200c71ce
[2024-11-19 18:11:35,602 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-19 18:11:35,603 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-19 18:11:35,604 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-19 18:11:35,605 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-19 18:11:35,610 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-19 18:11:35,611 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:11:35" (1/1) ...
[2024-11-19 18:11:35,612 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4aa269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:35, skipping insertion in model container
[2024-11-19 18:11:35,612 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:11:35" (1/1) ...
[2024-11-19 18:11:35,708 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-19 18:11:35,957 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label15.c[5297,5310]
[2024-11-19 18:11:36,560 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 18:11:36,567 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-19 18:11:36,590 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label15.c[5297,5310]
[2024-11-19 18:11:36,956 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 18:11:36,979 INFO  L204         MainTranslator]: Completed translation
[2024-11-19 18:11:36,979 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36 WrapperNode
[2024-11-19 18:11:36,979 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-19 18:11:36,980 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-19 18:11:36,980 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-19 18:11:36,980 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-19 18:11:36,986 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:37,038 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:37,597 INFO  L138                Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587
[2024-11-19 18:11:37,597 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-19 18:11:37,601 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-19 18:11:37,601 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-19 18:11:37,602 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-19 18:11:37,617 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:37,617 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:37,731 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:37,907 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-19 18:11:37,907 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:37,908 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:38,098 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:38,123 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:38,157 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:38,176 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:38,231 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-19 18:11:38,233 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-19 18:11:38,233 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-19 18:11:38,233 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-19 18:11:38,234 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (1/1) ...
[2024-11-19 18:11:38,238 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 18:11:38,248 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:11:38,265 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-19 18:11:38,267 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-19 18:11:38,301 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-19 18:11:38,301 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-19 18:11:38,301 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-19 18:11:38,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-19 18:11:38,361 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-19 18:11:38,363 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-19 18:11:42,776 INFO  L?                        ?]: Removed 738 outVars from TransFormulas that were not future-live.
[2024-11-19 18:11:42,776 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-19 18:11:42,814 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-19 18:11:42,815 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-19 18:11:42,815 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:11:42 BoogieIcfgContainer
[2024-11-19 18:11:42,815 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-19 18:11:42,816 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-19 18:11:42,816 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-19 18:11:42,819 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-19 18:11:42,819 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:11:35" (1/3) ...
[2024-11-19 18:11:42,820 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d00b951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:11:42, skipping insertion in model container
[2024-11-19 18:11:42,820 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:11:36" (2/3) ...
[2024-11-19 18:11:42,820 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d00b951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:11:42, skipping insertion in model container
[2024-11-19 18:11:42,820 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:11:42" (3/3) ...
[2024-11-19 18:11:42,821 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem13_label15.c
[2024-11-19 18:11:42,835 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-19 18:11:42,835 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-19 18:11:42,910 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-19 18:11:42,916 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f32e903, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-19 18:11:42,916 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-19 18:11:42,923 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:42,928 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-19 18:11:42,929 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:11:42,929 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:11:42,930 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:11:42,933 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:11:42,934 INFO  L85        PathProgramCache]: Analyzing trace with hash -1318097310, now seen corresponding path program 1 times
[2024-11-19 18:11:42,942 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:11:42,943 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581868815]
[2024-11-19 18:11:42,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:11:42,943 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:11:43,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:11:43,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:11:43,183 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:11:43,183 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581868815]
[2024-11-19 18:11:43,184 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581868815] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:11:43,184 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:11:43,184 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:11:43,185 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227704220]
[2024-11-19 18:11:43,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:11:43,189 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:11:43,190 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:11:43,208 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:11:43,209 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:11:43,214 INFO  L87              Difference]: Start difference. First operand  has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:46,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:11:46,905 INFO  L93              Difference]: Finished difference Result 3160 states and 5843 transitions.
[2024-11-19 18:11:46,908 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:11:46,909 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36
[2024-11-19 18:11:46,909 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:11:46,928 INFO  L225             Difference]: With dead ends: 3160
[2024-11-19 18:11:46,928 INFO  L226             Difference]: Without dead ends: 1983
[2024-11-19 18:11:46,934 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:11:46,937 INFO  L432           NwaCegarLoop]: 243 mSDtfsCounter, 1067 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 4004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:11:46,939 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 340 Invalid, 4004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [974 Valid, 3030 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2024-11-19 18:11:46,956 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1983 states.
[2024-11-19 18:11:47,024 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1930.
[2024-11-19 18:11:47,028 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1930 states, 1929 states have (on average 1.7973043027475375) internal successors, (3467), 1929 states have internal predecessors, (3467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:47,032 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 3467 transitions.
[2024-11-19 18:11:47,034 INFO  L78                 Accepts]: Start accepts. Automaton has 1930 states and 3467 transitions. Word has length 36
[2024-11-19 18:11:47,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:11:47,035 INFO  L471      AbstractCegarLoop]: Abstraction has 1930 states and 3467 transitions.
[2024-11-19 18:11:47,035 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:47,035 INFO  L276                IsEmpty]: Start isEmpty. Operand 1930 states and 3467 transitions.
[2024-11-19 18:11:47,037 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2024-11-19 18:11:47,037 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:11:47,037 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:11:47,038 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-19 18:11:47,038 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:11:47,038 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:11:47,038 INFO  L85        PathProgramCache]: Analyzing trace with hash -853326582, now seen corresponding path program 1 times
[2024-11-19 18:11:47,039 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:11:47,039 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418570761]
[2024-11-19 18:11:47,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:11:47,039 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:11:47,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:11:47,283 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:11:47,283 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:11:47,283 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418570761]
[2024-11-19 18:11:47,284 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418570761] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:11:47,284 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:11:47,284 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:11:47,284 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238636827]
[2024-11-19 18:11:47,284 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:11:47,287 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:11:47,287 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:11:47,288 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:11:47,288 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:11:47,289 INFO  L87              Difference]: Start difference. First operand 1930 states and 3467 transitions. Second operand  has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:54,122 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-19 18:11:54,193 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:11:54,193 INFO  L93              Difference]: Finished difference Result 5456 states and 9917 transitions.
[2024-11-19 18:11:54,194 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:11:54,194 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101
[2024-11-19 18:11:54,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:11:54,205 INFO  L225             Difference]: With dead ends: 5456
[2024-11-19 18:11:54,206 INFO  L226             Difference]: Without dead ends: 3528
[2024-11-19 18:11:54,209 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:11:54,210 INFO  L432           NwaCegarLoop]: 856 mSDtfsCounter, 923 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 878 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 3187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2024-11-19 18:11:54,210 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1008 Invalid, 3187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 2308 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time]
[2024-11-19 18:11:54,214 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3528 states.
[2024-11-19 18:11:54,261 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3526.
[2024-11-19 18:11:54,266 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3526 states, 3525 states have (on average 1.5670921985815602) internal successors, (5524), 3525 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:54,274 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5524 transitions.
[2024-11-19 18:11:54,274 INFO  L78                 Accepts]: Start accepts. Automaton has 3526 states and 5524 transitions. Word has length 101
[2024-11-19 18:11:54,274 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:11:54,275 INFO  L471      AbstractCegarLoop]: Abstraction has 3526 states and 5524 transitions.
[2024-11-19 18:11:54,275 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:54,275 INFO  L276                IsEmpty]: Start isEmpty. Operand 3526 states and 5524 transitions.
[2024-11-19 18:11:54,277 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-19 18:11:54,278 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:11:54,278 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:11:54,278 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-19 18:11:54,278 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:11:54,279 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:11:54,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -97090789, now seen corresponding path program 1 times
[2024-11-19 18:11:54,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:11:54,279 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346833749]
[2024-11-19 18:11:54,279 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:11:54,280 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:11:54,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:11:54,428 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:11:54,428 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:11:54,428 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346833749]
[2024-11-19 18:11:54,428 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346833749] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:11:54,429 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:11:54,429 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:11:54,429 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835144196]
[2024-11-19 18:11:54,429 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:11:54,429 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:11:54,431 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:11:54,432 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:11:54,432 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:11:54,432 INFO  L87              Difference]: Start difference. First operand 3526 states and 5524 transitions. Second operand  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:57,211 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:11:57,211 INFO  L93              Difference]: Finished difference Result 10232 states and 16097 transitions.
[2024-11-19 18:11:57,211 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:11:57,212 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107
[2024-11-19 18:11:57,212 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:11:57,232 INFO  L225             Difference]: With dead ends: 10232
[2024-11-19 18:11:57,232 INFO  L226             Difference]: Without dead ends: 6708
[2024-11-19 18:11:57,239 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:11:57,240 INFO  L432           NwaCegarLoop]: 717 mSDtfsCounter, 972 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 3309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:11:57,240 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 850 Invalid, 3309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-19 18:11:57,252 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6708 states.
[2024-11-19 18:11:57,347 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 6700.
[2024-11-19 18:11:57,355 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6700 states, 6699 states have (on average 1.413046723391551) internal successors, (9466), 6699 states have internal predecessors, (9466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:57,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6700 states to 6700 states and 9466 transitions.
[2024-11-19 18:11:57,366 INFO  L78                 Accepts]: Start accepts. Automaton has 6700 states and 9466 transitions. Word has length 107
[2024-11-19 18:11:57,366 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:11:57,366 INFO  L471      AbstractCegarLoop]: Abstraction has 6700 states and 9466 transitions.
[2024-11-19 18:11:57,367 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:11:57,369 INFO  L276                IsEmpty]: Start isEmpty. Operand 6700 states and 9466 transitions.
[2024-11-19 18:11:57,371 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2024-11-19 18:11:57,371 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:11:57,371 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:11:57,371 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-19 18:11:57,371 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:11:57,372 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:11:57,375 INFO  L85        PathProgramCache]: Analyzing trace with hash -456177296, now seen corresponding path program 1 times
[2024-11-19 18:11:57,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:11:57,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237092220]
[2024-11-19 18:11:57,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:11:57,376 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:11:57,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:11:57,523 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:11:57,525 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:11:57,525 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237092220]
[2024-11-19 18:11:57,525 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237092220] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:11:57,525 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:11:57,525 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:11:57,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296353500]
[2024-11-19 18:11:57,525 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:11:57,526 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:11:57,526 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:11:57,526 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:11:57,526 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:11:57,527 INFO  L87              Difference]: Start difference. First operand 6700 states and 9466 transitions. Second operand  has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:00,289 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:00,290 INFO  L93              Difference]: Finished difference Result 17443 states and 24479 transitions.
[2024-11-19 18:12:00,290 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:00,290 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137
[2024-11-19 18:12:00,290 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:00,318 INFO  L225             Difference]: With dead ends: 17443
[2024-11-19 18:12:00,318 INFO  L226             Difference]: Without dead ends: 10745
[2024-11-19 18:12:00,326 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:00,329 INFO  L432           NwaCegarLoop]: 834 mSDtfsCounter, 844 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 3291 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 3741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 3291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:00,331 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 965 Invalid, 3741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 3291 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-19 18:12:00,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10745 states.
[2024-11-19 18:12:00,441 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 10669.
[2024-11-19 18:12:00,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10669 states, 10668 states have (on average 1.3562992125984252) internal successors, (14469), 10668 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:00,470 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10669 states to 10669 states and 14469 transitions.
[2024-11-19 18:12:00,470 INFO  L78                 Accepts]: Start accepts. Automaton has 10669 states and 14469 transitions. Word has length 137
[2024-11-19 18:12:00,472 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:00,472 INFO  L471      AbstractCegarLoop]: Abstraction has 10669 states and 14469 transitions.
[2024-11-19 18:12:00,472 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:00,472 INFO  L276                IsEmpty]: Start isEmpty. Operand 10669 states and 14469 transitions.
[2024-11-19 18:12:00,473 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-19 18:12:00,474 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:00,475 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:00,475 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-19 18:12:00,475 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:00,475 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:00,476 INFO  L85        PathProgramCache]: Analyzing trace with hash -2032460361, now seen corresponding path program 1 times
[2024-11-19 18:12:00,476 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:00,476 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218413055]
[2024-11-19 18:12:00,476 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:00,476 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:00,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:00,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:12:00,741 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:00,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218413055]
[2024-11-19 18:12:00,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218413055] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:00,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:12:00,742 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:12:00,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145845572]
[2024-11-19 18:12:00,742 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:00,743 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:00,744 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:00,744 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:00,745 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:00,745 INFO  L87              Difference]: Start difference. First operand 10669 states and 14469 transitions. Second operand  has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:03,127 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:03,127 INFO  L93              Difference]: Finished difference Result 20549 states and 28119 transitions.
[2024-11-19 18:12:03,128 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:03,129 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147
[2024-11-19 18:12:03,129 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:03,163 INFO  L225             Difference]: With dead ends: 20549
[2024-11-19 18:12:03,163 INFO  L226             Difference]: Without dead ends: 10669
[2024-11-19 18:12:03,174 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:03,176 INFO  L432           NwaCegarLoop]: 1083 mSDtfsCounter, 678 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:03,176 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1212 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-19 18:12:03,186 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10669 states.
[2024-11-19 18:12:03,277 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10669 to 10669.
[2024-11-19 18:12:03,296 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10669 states, 10668 states have (on average 1.3539557555305586) internal successors, (14444), 10668 states have internal predecessors, (14444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:03,313 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10669 states to 10669 states and 14444 transitions.
[2024-11-19 18:12:03,313 INFO  L78                 Accepts]: Start accepts. Automaton has 10669 states and 14444 transitions. Word has length 147
[2024-11-19 18:12:03,314 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:03,314 INFO  L471      AbstractCegarLoop]: Abstraction has 10669 states and 14444 transitions.
[2024-11-19 18:12:03,314 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:03,315 INFO  L276                IsEmpty]: Start isEmpty. Operand 10669 states and 14444 transitions.
[2024-11-19 18:12:03,315 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2024-11-19 18:12:03,316 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:03,316 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:03,316 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-19 18:12:03,316 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:03,316 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:03,317 INFO  L85        PathProgramCache]: Analyzing trace with hash 475465869, now seen corresponding path program 1 times
[2024-11-19 18:12:03,317 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:03,317 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623863063]
[2024-11-19 18:12:03,317 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:03,317 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:03,431 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:03,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:12:03,846 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:03,846 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623863063]
[2024-11-19 18:12:03,846 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623863063] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:12:03,846 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392346374]
[2024-11-19 18:12:03,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:03,846 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:12:03,846 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:12:03,849 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:12:03,850 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-19 18:12:03,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:03,920 INFO  L255         TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-19 18:12:03,926 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:12:04,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked.
[2024-11-19 18:12:04,123 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:12:04,124 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392346374] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:04,124 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:12:04,124 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6
[2024-11-19 18:12:04,124 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510591]
[2024-11-19 18:12:04,124 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:04,125 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:04,125 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:04,125 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:04,125 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:12:04,125 INFO  L87              Difference]: Start difference. First operand 10669 states and 14444 transitions. Second operand  has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:06,664 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:06,665 INFO  L93              Difference]: Finished difference Result 30031 states and 41217 transitions.
[2024-11-19 18:12:06,666 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:06,667 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161
[2024-11-19 18:12:06,667 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:06,699 INFO  L225             Difference]: With dead ends: 30031
[2024-11-19 18:12:06,699 INFO  L226             Difference]: Without dead ends: 20151
[2024-11-19 18:12:06,711 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:12:06,714 INFO  L432           NwaCegarLoop]: 1071 mSDtfsCounter, 736 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 779 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 3306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 779 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:06,714 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1221 Invalid, 3306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [779 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-19 18:12:06,732 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20151 states.
[2024-11-19 18:12:06,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20151 to 19337.
[2024-11-19 18:12:06,892 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19337 states, 19336 states have (on average 1.24244931733554) internal successors, (24024), 19336 states have internal predecessors, (24024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:06,913 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19337 states to 19337 states and 24024 transitions.
[2024-11-19 18:12:06,913 INFO  L78                 Accepts]: Start accepts. Automaton has 19337 states and 24024 transitions. Word has length 161
[2024-11-19 18:12:06,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:06,914 INFO  L471      AbstractCegarLoop]: Abstraction has 19337 states and 24024 transitions.
[2024-11-19 18:12:06,914 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:06,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 19337 states and 24024 transitions.
[2024-11-19 18:12:06,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 249
[2024-11-19 18:12:06,917 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:06,973 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:06,990 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-19 18:12:07,173 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-19 18:12:07,174 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:07,176 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:07,176 INFO  L85        PathProgramCache]: Analyzing trace with hash 106432199, now seen corresponding path program 1 times
[2024-11-19 18:12:07,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:07,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90826783]
[2024-11-19 18:12:07,176 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:07,177 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:07,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:07,433 INFO  L134       CoverageAnalysis]: Checked inductivity of 162 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2024-11-19 18:12:07,433 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:07,433 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90826783]
[2024-11-19 18:12:07,433 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90826783] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:07,433 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:12:07,433 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 18:12:07,434 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588976002]
[2024-11-19 18:12:07,434 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:07,434 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:07,434 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:07,434 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:07,435 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:07,435 INFO  L87              Difference]: Start difference. First operand 19337 states and 24024 transitions. Second operand  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:10,013 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:10,013 INFO  L93              Difference]: Finished difference Result 44989 states and 55628 transitions.
[2024-11-19 18:12:10,014 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:10,014 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248
[2024-11-19 18:12:10,014 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:10,053 INFO  L225             Difference]: With dead ends: 44989
[2024-11-19 18:12:10,054 INFO  L226             Difference]: Without dead ends: 26441
[2024-11-19 18:12:10,071 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:10,072 INFO  L432           NwaCegarLoop]: 1029 mSDtfsCounter, 728 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:10,072 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1213 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-19 18:12:10,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26441 states.
[2024-11-19 18:12:10,260 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26441 to 26434.
[2024-11-19 18:12:10,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26434 states, 26433 states have (on average 1.200582605076987) internal successors, (31735), 26433 states have internal predecessors, (31735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:10,306 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26434 states to 26434 states and 31735 transitions.
[2024-11-19 18:12:10,307 INFO  L78                 Accepts]: Start accepts. Automaton has 26434 states and 31735 transitions. Word has length 248
[2024-11-19 18:12:10,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:10,307 INFO  L471      AbstractCegarLoop]: Abstraction has 26434 states and 31735 transitions.
[2024-11-19 18:12:10,307 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:10,307 INFO  L276                IsEmpty]: Start isEmpty. Operand 26434 states and 31735 transitions.
[2024-11-19 18:12:10,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 251
[2024-11-19 18:12:10,309 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:10,310 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:10,310 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-19 18:12:10,310 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:10,310 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:10,310 INFO  L85        PathProgramCache]: Analyzing trace with hash -1619127421, now seen corresponding path program 1 times
[2024-11-19 18:12:10,310 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:10,311 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955215887]
[2024-11-19 18:12:10,311 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:10,311 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:10,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:10,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:12:10,419 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:10,419 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955215887]
[2024-11-19 18:12:10,420 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955215887] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:10,420 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:12:10,420 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:12:10,420 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49206248]
[2024-11-19 18:12:10,420 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:10,420 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:10,420 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:10,421 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:10,421 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:10,421 INFO  L87              Difference]: Start difference. First operand 26434 states and 31735 transitions. Second operand  has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:13,635 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:13,635 INFO  L93              Difference]: Finished difference Result 72535 states and 87971 transitions.
[2024-11-19 18:12:13,636 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:13,636 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250
[2024-11-19 18:12:13,636 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:13,697 INFO  L225             Difference]: With dead ends: 72535
[2024-11-19 18:12:13,697 INFO  L226             Difference]: Without dead ends: 46103
[2024-11-19 18:12:13,720 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:13,722 INFO  L432           NwaCegarLoop]: 1848 mSDtfsCounter, 841 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:13,722 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1984 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-19 18:12:13,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46103 states.
[2024-11-19 18:12:14,064 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46103 to 43733.
[2024-11-19 18:12:14,094 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 43733 states, 43732 states have (on average 1.1691210097868838) internal successors, (51128), 43732 states have internal predecessors, (51128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:14,138 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 43733 states to 43733 states and 51128 transitions.
[2024-11-19 18:12:14,139 INFO  L78                 Accepts]: Start accepts. Automaton has 43733 states and 51128 transitions. Word has length 250
[2024-11-19 18:12:14,139 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:14,139 INFO  L471      AbstractCegarLoop]: Abstraction has 43733 states and 51128 transitions.
[2024-11-19 18:12:14,140 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:14,140 INFO  L276                IsEmpty]: Start isEmpty. Operand 43733 states and 51128 transitions.
[2024-11-19 18:12:14,143 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 264
[2024-11-19 18:12:14,143 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:14,144 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:14,144 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-19 18:12:14,144 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:14,144 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:14,144 INFO  L85        PathProgramCache]: Analyzing trace with hash -2125069961, now seen corresponding path program 1 times
[2024-11-19 18:12:14,144 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:14,145 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695023010]
[2024-11-19 18:12:14,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:14,145 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:14,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:14,279 INFO  L134       CoverageAnalysis]: Checked inductivity of 162 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 18:12:14,280 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:14,280 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695023010]
[2024-11-19 18:12:14,281 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695023010] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:14,281 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:12:14,281 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:12:14,281 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715056618]
[2024-11-19 18:12:14,281 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:14,282 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:14,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:14,283 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:14,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:14,283 INFO  L87              Difference]: Start difference. First operand 43733 states and 51128 transitions. Second operand  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:17,223 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:17,223 INFO  L93              Difference]: Finished difference Result 106364 states and 126458 transitions.
[2024-11-19 18:12:17,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:17,224 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263
[2024-11-19 18:12:17,224 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:17,296 INFO  L225             Difference]: With dead ends: 106364
[2024-11-19 18:12:17,296 INFO  L226             Difference]: Without dead ends: 63420
[2024-11-19 18:12:17,326 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:17,326 INFO  L432           NwaCegarLoop]: 812 mSDtfsCounter, 823 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 900 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:17,326 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 930 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-19 18:12:17,373 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63420 states.
[2024-11-19 18:12:17,763 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63420 to 61048.
[2024-11-19 18:12:17,801 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61048 states, 61047 states have (on average 1.1609579504316347) internal successors, (70873), 61047 states have internal predecessors, (70873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:17,864 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61048 states to 61048 states and 70873 transitions.
[2024-11-19 18:12:17,864 INFO  L78                 Accepts]: Start accepts. Automaton has 61048 states and 70873 transitions. Word has length 263
[2024-11-19 18:12:17,865 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:17,865 INFO  L471      AbstractCegarLoop]: Abstraction has 61048 states and 70873 transitions.
[2024-11-19 18:12:17,865 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:17,865 INFO  L276                IsEmpty]: Start isEmpty. Operand 61048 states and 70873 transitions.
[2024-11-19 18:12:17,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 325
[2024-11-19 18:12:17,869 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:17,869 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:17,869 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-19 18:12:17,869 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:17,869 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:17,869 INFO  L85        PathProgramCache]: Analyzing trace with hash 405212956, now seen corresponding path program 1 times
[2024-11-19 18:12:17,870 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:17,871 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968305261]
[2024-11-19 18:12:17,871 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:17,871 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:17,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:18,330 INFO  L134       CoverageAnalysis]: Checked inductivity of 377 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-11-19 18:12:18,331 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:18,331 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968305261]
[2024-11-19 18:12:18,331 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968305261] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:18,331 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:12:18,331 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:12:18,331 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012713659]
[2024-11-19 18:12:18,331 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:18,332 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 18:12:18,332 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:18,332 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 18:12:18,332 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:12:18,333 INFO  L87              Difference]: Start difference. First operand 61048 states and 70873 transitions. Second operand  has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:24,179 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:24,179 INFO  L93              Difference]: Finished difference Result 160082 states and 186750 transitions.
[2024-11-19 18:12:24,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 18:12:24,179 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324
[2024-11-19 18:12:24,180 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:24,296 INFO  L225             Difference]: With dead ends: 160082
[2024-11-19 18:12:24,296 INFO  L226             Difference]: Without dead ends: 99823
[2024-11-19 18:12:24,325 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 18:12:24,326 INFO  L432           NwaCegarLoop]: 860 mSDtfsCounter, 1689 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 7042 mSolverCounterSat, 939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 7981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 7042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:24,327 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 1113 Invalid, 7981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [939 Valid, 7042 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2024-11-19 18:12:24,395 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99823 states.
[2024-11-19 18:12:25,161 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99823 to 76803.
[2024-11-19 18:12:25,214 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76803 states, 76802 states have (on average 1.1463763964480091) internal successors, (88044), 76802 states have internal predecessors, (88044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:25,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76803 states to 76803 states and 88044 transitions.
[2024-11-19 18:12:25,297 INFO  L78                 Accepts]: Start accepts. Automaton has 76803 states and 88044 transitions. Word has length 324
[2024-11-19 18:12:25,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:25,297 INFO  L471      AbstractCegarLoop]: Abstraction has 76803 states and 88044 transitions.
[2024-11-19 18:12:25,297 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:25,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 76803 states and 88044 transitions.
[2024-11-19 18:12:25,300 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 343
[2024-11-19 18:12:25,300 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:25,301 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:25,301 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-19 18:12:25,301 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:25,301 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:25,301 INFO  L85        PathProgramCache]: Analyzing trace with hash -269962597, now seen corresponding path program 1 times
[2024-11-19 18:12:25,301 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:25,301 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977259717]
[2024-11-19 18:12:25,301 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:25,301 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:25,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:26,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 343 backedges. 196 proven. 113 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-11-19 18:12:26,369 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:26,369 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977259717]
[2024-11-19 18:12:26,369 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977259717] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:12:26,369 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811909340]
[2024-11-19 18:12:26,369 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:26,369 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:12:26,369 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:12:26,371 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:12:26,372 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-19 18:12:26,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:26,483 INFO  L255         TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-19 18:12:26,492 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:12:26,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 343 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2024-11-19 18:12:26,572 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:12:26,572 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811909340] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:26,572 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:12:26,572 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9
[2024-11-19 18:12:26,572 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407826468]
[2024-11-19 18:12:26,572 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:26,573 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:26,573 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:26,573 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:26,573 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-19 18:12:26,574 INFO  L87              Difference]: Start difference. First operand 76803 states and 88044 transitions. Second operand  has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:29,421 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:29,421 INFO  L93              Difference]: Finished difference Result 152806 states and 175284 transitions.
[2024-11-19 18:12:29,421 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:29,422 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342
[2024-11-19 18:12:29,422 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:29,637 INFO  L225             Difference]: With dead ends: 152806
[2024-11-19 18:12:29,637 INFO  L226             Difference]: Without dead ends: 76792
[2024-11-19 18:12:29,655 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-19 18:12:29,655 INFO  L432           NwaCegarLoop]: 681 mSDtfsCounter, 1073 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2388 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 2388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:29,655 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 814 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 2388 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-19 18:12:29,716 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76792 states.
[2024-11-19 18:12:30,271 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76792 to 76789.
[2024-11-19 18:12:30,321 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76789 states, 76788 states have (on average 1.1087149033703183) internal successors, (85136), 76788 states have internal predecessors, (85136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:30,398 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76789 states to 76789 states and 85136 transitions.
[2024-11-19 18:12:30,398 INFO  L78                 Accepts]: Start accepts. Automaton has 76789 states and 85136 transitions. Word has length 342
[2024-11-19 18:12:30,399 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:30,399 INFO  L471      AbstractCegarLoop]: Abstraction has 76789 states and 85136 transitions.
[2024-11-19 18:12:30,399 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:30,399 INFO  L276                IsEmpty]: Start isEmpty. Operand 76789 states and 85136 transitions.
[2024-11-19 18:12:30,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 392
[2024-11-19 18:12:30,403 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:30,403 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:30,411 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-19 18:12:30,607 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-19 18:12:30,608 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:30,608 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:30,608 INFO  L85        PathProgramCache]: Analyzing trace with hash -1322459551, now seen corresponding path program 1 times
[2024-11-19 18:12:30,608 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:30,608 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827824051]
[2024-11-19 18:12:30,608 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:30,609 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:30,653 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:31,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 437 backedges. 293 proven. 110 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-11-19 18:12:31,667 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:31,667 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827824051]
[2024-11-19 18:12:31,667 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827824051] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:12:31,667 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930055687]
[2024-11-19 18:12:31,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:31,668 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:12:31,668 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:12:31,669 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:12:31,670 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-19 18:12:31,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:31,773 INFO  L255         TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-19 18:12:31,776 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:12:31,916 INFO  L134       CoverageAnalysis]: Checked inductivity of 437 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked.
[2024-11-19 18:12:31,916 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:12:31,916 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930055687] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:31,916 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:12:31,916 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-11-19 18:12:31,916 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270414290]
[2024-11-19 18:12:31,916 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:31,917 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:31,917 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:31,917 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:31,917 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:12:31,917 INFO  L87              Difference]: Start difference. First operand 76789 states and 85136 transitions. Second operand  has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:34,778 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:34,778 INFO  L93              Difference]: Finished difference Result 152787 states and 169477 transitions.
[2024-11-19 18:12:34,778 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:34,779 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391
[2024-11-19 18:12:34,779 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:34,873 INFO  L225             Difference]: With dead ends: 152787
[2024-11-19 18:12:34,873 INFO  L226             Difference]: Without dead ends: 76787
[2024-11-19 18:12:34,922 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:12:34,922 INFO  L432           NwaCegarLoop]: 1343 mSDtfsCounter, 1084 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:34,922 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1422 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-19 18:12:34,982 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76787 states.
[2024-11-19 18:12:35,767 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76787 to 76786.
[2024-11-19 18:12:35,805 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76786 states, 76785 states have (on average 1.0866184801719085) internal successors, (83436), 76785 states have internal predecessors, (83436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:35,911 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76786 states to 76786 states and 83436 transitions.
[2024-11-19 18:12:35,913 INFO  L78                 Accepts]: Start accepts. Automaton has 76786 states and 83436 transitions. Word has length 391
[2024-11-19 18:12:35,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:35,914 INFO  L471      AbstractCegarLoop]: Abstraction has 76786 states and 83436 transitions.
[2024-11-19 18:12:35,914 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:35,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 76786 states and 83436 transitions.
[2024-11-19 18:12:35,918 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 393
[2024-11-19 18:12:35,919 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:35,919 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:35,930 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-19 18:12:36,119 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:12:36,120 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:36,120 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:36,120 INFO  L85        PathProgramCache]: Analyzing trace with hash 1571282055, now seen corresponding path program 1 times
[2024-11-19 18:12:36,120 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:36,120 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431867617]
[2024-11-19 18:12:36,120 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:36,120 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:36,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:36,424 INFO  L134       CoverageAnalysis]: Checked inductivity of 625 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked.
[2024-11-19 18:12:36,426 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:36,426 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431867617]
[2024-11-19 18:12:36,426 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431867617] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:36,426 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:12:36,426 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:12:36,427 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16431058]
[2024-11-19 18:12:36,427 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:36,427 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:36,427 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:36,427 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:36,427 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:36,428 INFO  L87              Difference]: Start difference. First operand 76786 states and 83436 transitions. Second operand  has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:39,660 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:39,661 INFO  L93              Difference]: Finished difference Result 177191 states and 193904 transitions.
[2024-11-19 18:12:39,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:39,661 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392
[2024-11-19 18:12:39,662 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:39,798 INFO  L225             Difference]: With dead ends: 177191
[2024-11-19 18:12:39,798 INFO  L226             Difference]: Without dead ends: 101194
[2024-11-19 18:12:39,840 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:39,841 INFO  L432           NwaCegarLoop]: 812 mSDtfsCounter, 888 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:39,841 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 895 Invalid, 3350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [932 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-19 18:12:39,912 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101194 states.
[2024-11-19 18:12:40,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101194 to 99602.
[2024-11-19 18:12:41,048 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99602 states, 99601 states have (on average 1.0899087358560657) internal successors, (108556), 99601 states have internal predecessors, (108556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:41,159 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99602 states to 99602 states and 108556 transitions.
[2024-11-19 18:12:41,160 INFO  L78                 Accepts]: Start accepts. Automaton has 99602 states and 108556 transitions. Word has length 392
[2024-11-19 18:12:41,160 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:41,160 INFO  L471      AbstractCegarLoop]: Abstraction has 99602 states and 108556 transitions.
[2024-11-19 18:12:41,161 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:41,161 INFO  L276                IsEmpty]: Start isEmpty. Operand 99602 states and 108556 transitions.
[2024-11-19 18:12:41,169 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 467
[2024-11-19 18:12:41,169 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:41,169 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:41,169 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-19 18:12:41,169 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:41,170 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:41,170 INFO  L85        PathProgramCache]: Analyzing trace with hash 1585588610, now seen corresponding path program 1 times
[2024-11-19 18:12:41,170 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:41,170 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853635229]
[2024-11-19 18:12:41,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:41,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:41,217 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:42,279 INFO  L134       CoverageAnalysis]: Checked inductivity of 452 backedges. 308 proven. 110 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-11-19 18:12:42,279 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:42,279 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853635229]
[2024-11-19 18:12:42,280 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853635229] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:12:42,280 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733840421]
[2024-11-19 18:12:42,280 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:42,280 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:12:42,280 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:12:42,281 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:12:42,282 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-19 18:12:42,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:42,394 INFO  L255         TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-19 18:12:42,397 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:12:42,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 452 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked.
[2024-11-19 18:12:42,607 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:12:42,607 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [733840421] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:42,607 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:12:42,607 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-11-19 18:12:42,608 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462166044]
[2024-11-19 18:12:42,608 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:42,608 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:42,608 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:42,609 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:42,609 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:12:42,609 INFO  L87              Difference]: Start difference. First operand 99602 states and 108556 transitions. Second operand  has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:45,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:45,821 INFO  L93              Difference]: Finished difference Result 195242 states and 214131 transitions.
[2024-11-19 18:12:45,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:45,822 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 466
[2024-11-19 18:12:45,822 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:45,951 INFO  L225             Difference]: With dead ends: 195242
[2024-11-19 18:12:45,951 INFO  L226             Difference]: Without dead ends: 111390
[2024-11-19 18:12:45,979 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:12:45,980 INFO  L432           NwaCegarLoop]: 382 mSDtfsCounter, 1133 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:45,980 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 396 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-19 18:12:46,048 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111390 states.
[2024-11-19 18:12:47,084 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111390 to 111390.
[2024-11-19 18:12:47,128 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 111390 states, 111389 states have (on average 1.0825575236333929) internal successors, (120585), 111389 states have internal predecessors, (120585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:47,243 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111390 states to 111390 states and 120585 transitions.
[2024-11-19 18:12:47,244 INFO  L78                 Accepts]: Start accepts. Automaton has 111390 states and 120585 transitions. Word has length 466
[2024-11-19 18:12:47,244 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:47,244 INFO  L471      AbstractCegarLoop]: Abstraction has 111390 states and 120585 transitions.
[2024-11-19 18:12:47,244 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:47,244 INFO  L276                IsEmpty]: Start isEmpty. Operand 111390 states and 120585 transitions.
[2024-11-19 18:12:47,252 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 485
[2024-11-19 18:12:47,253 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:47,253 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:47,260 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-19 18:12:47,453 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:12:47,453 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:47,454 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:47,454 INFO  L85        PathProgramCache]: Analyzing trace with hash 952537024, now seen corresponding path program 1 times
[2024-11-19 18:12:47,454 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:47,454 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697056930]
[2024-11-19 18:12:47,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:47,454 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:47,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:47,669 INFO  L134       CoverageAnalysis]: Checked inductivity of 720 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2024-11-19 18:12:47,669 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:47,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697056930]
[2024-11-19 18:12:47,670 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697056930] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:47,670 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 18:12:47,670 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 18:12:47,670 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390581956]
[2024-11-19 18:12:47,670 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:47,670 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:47,670 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:47,671 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:47,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:47,671 INFO  L87              Difference]: Start difference. First operand 111390 states and 120585 transitions. Second operand  has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:51,066 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 18:12:51,066 INFO  L93              Difference]: Finished difference Result 245599 states and 266947 transitions.
[2024-11-19 18:12:51,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 18:12:51,067 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 484
[2024-11-19 18:12:51,067 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 18:12:51,221 INFO  L225             Difference]: With dead ends: 245599
[2024-11-19 18:12:51,221 INFO  L226             Difference]: Without dead ends: 133424
[2024-11-19 18:12:51,268 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 18:12:51,268 INFO  L432           NwaCegarLoop]: 1710 mSDtfsCounter, 726 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-19 18:12:51,269 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1846 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [672 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-19 18:12:51,353 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133424 states.
[2024-11-19 18:12:52,800 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133424 to 133411.
[2024-11-19 18:12:52,867 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 133411 states, 133410 states have (on average 1.0704669814856458) internal successors, (142811), 133410 states have internal predecessors, (142811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:53,004 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 133411 states to 133411 states and 142811 transitions.
[2024-11-19 18:12:53,005 INFO  L78                 Accepts]: Start accepts. Automaton has 133411 states and 142811 transitions. Word has length 484
[2024-11-19 18:12:53,005 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 18:12:53,005 INFO  L471      AbstractCegarLoop]: Abstraction has 133411 states and 142811 transitions.
[2024-11-19 18:12:53,005 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 18:12:53,005 INFO  L276                IsEmpty]: Start isEmpty. Operand 133411 states and 142811 transitions.
[2024-11-19 18:12:53,023 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 598
[2024-11-19 18:12:53,023 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 18:12:53,023 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 18:12:53,023 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-19 18:12:53,024 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-19 18:12:53,024 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 18:12:53,024 INFO  L85        PathProgramCache]: Analyzing trace with hash -1129725393, now seen corresponding path program 1 times
[2024-11-19 18:12:53,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 18:12:53,024 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691309569]
[2024-11-19 18:12:53,024 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:53,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 18:12:53,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:54,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 379 proven. 110 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-11-19 18:12:54,321 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 18:12:54,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691309569]
[2024-11-19 18:12:54,321 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691309569] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-19 18:12:54,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988313054]
[2024-11-19 18:12:54,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 18:12:54,321 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-19 18:12:54,321 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 18:12:54,323 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-19 18:12:54,324 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-19 18:12:54,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 18:12:54,499 INFO  L255         TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-19 18:12:54,506 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-19 18:12:55,441 INFO  L134       CoverageAnalysis]: Checked inductivity of 523 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked.
[2024-11-19 18:12:55,441 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-19 18:12:55,441 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [988313054] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 18:12:55,441 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-19 18:12:55,441 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6
[2024-11-19 18:12:55,442 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164848651]
[2024-11-19 18:12:55,442 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 18:12:55,442 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 18:12:55,442 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 18:12:55,443 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 18:12:55,443 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-19 18:12:55,443 INFO  L87              Difference]: Start difference. First operand 133411 states and 142811 transitions. Second operand  has 3 states, 3 states have (on average 147.0) internal successors, (441), 2 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)